2009年12月31日星期四

俄羅斯或派太空船撞開威脅地球的小行星

俄考慮用太空船撞小行星解地球浩劫
(星島)2009年12月31日 星期四 16:54

俄羅斯 太空總署署長佩爾米諾夫針對小行星 「阿波菲斯」(Apophis),可能會在2032年之前撞向地球,他正考慮派出一架太空船撞向這枚直徑達270米的小行星,以便把它撞離原定的軌道,以消除撞地球的可能浩劫。

 佩爾米諾夫周三接受Golos Rossii電台訪問時透露,俄方最終可能邀請美國 太空總署、歐洲太空總署、中國國家航太局以及其他航天機構參與這項撞擊小行星的任務。

 他並沒有透露這項撞擊任務的細節,但強調毋須引發核子爆炸。

這枚可能威脅地球的小行星於2004年首次發現,當時天文學家曾估算它在2029年首次飛過地球時,有37分之一機會撞向地球。

 但後來有研究排除它在2029年撞向地球的可能性,頂多只會在29450公里外掠過。不過,天文學家指它在隨後飛近地球時,仍有可能撞向地球,但機會十分渺茫。

 美國太空總署曾推算「阿波菲斯」在2036年撞地球的機會是4.5萬分之一,但到了3個月前,機會率已大幅下調至25萬分之一。
http://hk.news.yahoo.com/article/091231/3/fwiz.html

Apophis Hit Earth in 2029 ?
http://www.youtube.com/watch?v=LXV0uBfRb0A&feature=related
Apophis Stikes Earth in 2034
http://www.youtube.com/watch?v=vt5rNH6knsI&feature=related
ASTROID APOPHIS asteroide apofis 2036
http://www.youtube.com/watch?v=Hv_cvsYEtME



End of the world this century? Nonsense says Nasa, but the Russia Space Agency isn't so sure...
本世紀世界末日?美國宇航局說荒謬,但俄羅斯航天局就講得冇咁肯定...


地球甚麽事?俄羅斯可能派遣太空船撞開有威脅的小行星
What on Earth?! Russia may send spaceship to knock threatening asteroid off course

By Daily Mail Reporter
Last updated at 11:41 PM on 30th December
Earth could be in peril from a large asteroid and a spacecraft may be needed to knock it off its path, the head of Russia's space agency claimed today.
地球可能因為一粒大的小行星而處於危險中,可能需要一架太空船去撞擊它令它離開軌道,俄羅斯航天局頭頭今天聲稱。
Anatoly Perminov said the space agency will soon hold a meeting to assess a mission to Apophis, in a bid to stave off the end of the world.

He told Golos Rossii radio that it would invite Nasa, the European Space Agency, the Chinese space agency and others to join the project once it is finalised.

The news may come as something of a surprise to the U.S space agency, who down-scaled the threat of the 885ft rock hitting Earth in 2029 from one in 37 to virtually non existent.
這一消息或許會令美國航天局意外,Nasa評低那八八五英尺岩石在2029年撞擊地球的威脅,從一個在37至幾乎不存在。
Nasa predicts the asteroid will peacefully pass us by, coming no nearer than 18,000miles away.
NASA預測那顆小行星將和平通過我們,來至不會近過18000英里的地方。
There is a tiny possibility that Apophis could hit Earth in 2035 however, although again the odds of this happening have been lowered from 1 in 45,000 to 1 in 250,000
會有一個微小可能阿波菲斯可能在2035年撞擊地球,但再次出現這種可能性已經降低至45,000 或 25萬之一 。
However, Mr Perminov insists the asteroid is a potential menace. He was vague about the evidence of a possible hit but said he had heard from a scientists that the asteroid is getting closer.
不過,佩爾米諾夫堅持小行星是一個潛在的威脅,關於可能擊中的證據他是模糊的,但他說他聽見科學家說那小行星是越來越近。
'I don't remember exactly, but it seems to me it could hit the Earth by 2032,' he said.

'People's lives are at stake. We should pay several hundred million dollars and build a system that would allow to prevent a collision, rather than sit and wait for it to happen and kill hundreds of thousands of people,' Perminov said.

Scientists have long theorised about asteroid deflection strategies.

Some have proposed sending a probe to circle around a dangerous asteroid to gradually change its trajectory. Others suggested sending a spacecraft to collide with the asteroid and alter its momentum, or using nuclear weapons to hit it.

Mr Perminov wouldn't disclose any details of the project, saying they still need to be worked out. But he said the mission wouldn't require any nuclear explosions.

Hollywood action films "Deep Impact" and "Armageddon," have featured space missions scrambling to avoid catastrophic collisions. In both movies space crews use nuclear bombs in an attempt to prevent collisions.

'Calculations show that it's possible to create a special purpose spacecraft within the time we have, which would help avoid the collision without destroying it (the asteroid) and without detonating any nuclear charges,' Mr Perminov said.
'The threat of collision can be averted.'

Boris Shustov, the director of the Institute of Astronomy under the Russian Academy of Sciences, hailed Mr Perminov's statement as a signal that officials had come to recognize the danger posed by asteroids.

'Apophis is just a symbolic example, there are many other dangerous objects we know little about,' he said, according to RIA Novosti news agency.

http://www.dailymail.co.uk/sciencetech/article-1239424/Russia-send-spaceship-knock-asteroid-Earth-threatening-path.html
2036年行星恐撞地球 俄太空總署密研對策

俄羅斯 太空總署署長今天表示,俄羅斯科學家不久將召開閉門會議,討論如何解除地球26年後可能遭一顆巨型小行星 撞擊的危機。

貝米諾夫(Anatoly Perminov)告訴「俄羅斯之聲」(Voice of Russia)電台,「我們的科學團隊不久將舉行一場閉門會議,研究如何防止小行星阿波菲斯(Apophis)在2036年撞上地球。」

報導引述他的話:「我們談的是大家的性命。花費數億美元 建立系統防止碰撞,總比等到無數人喪生好。」

「俄羅斯新聞社」(RIA Novosti)說,如果直徑約350公尺的阿波菲斯2036年擦撞地球時,可能會形成相當法國 面積大小的新沙漠。

貝米諾夫說,防止災難發生的正式計畫可能是一項跨國工程,屆時會邀請俄羅斯、歐洲、美國 和中國太空專家參與。

「國際傳真社」(Interfax)引述他的話說,其中一項解決辦法是發射一個新建的「太空裝置」,撞移小行星,令它偏離朝地球碰撞的軌道。

貝米諾夫又說:「這不會造成任何核子爆炸,一切都是依據物理定律來進行。我們會仔細研究一切。 」

http://hk.news.yahoo.com/article/091230/8/fw1y.html

天文專家:小行星"阿波菲斯"撞地球可能性不大

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